Github user dbtsai commented on a diff in the pull request:
https://github.com/apache/spark/pull/3833#discussion_r22965406
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/classification/LogisticRegression.scala
---
@@ -61,20 +67,70 @@ class LogisticRegressionModel (
override protected def predictPoint(dataMatrix: Vector, weightMatrix:
Vector,
--- End diff --
I thought about having weights as a matrix, but it's required to change so
many places. For example, the gradient object has to change, the underline
`GeneralizedLinearAlgorithm` has to change as well. I'm thinking to have more
clear APIs when we move the code to `ml` package since we can do it from
scratch.
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